Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 129, NWS Austin/San Antonio, TX

December 23, 2002Kerr County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Dec 23, 2002, 5:23 PM CST for Kerr County, Texas. It was in force for 52 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 23, 2002, 5:23 PM CST (23:23 UTC)
Expired
Dec 23, 2002, 6:15 PM CST
In force
52 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Kerr County, TX

The radar

The Laughlin AFB radar (KDFX), 126 km from the middle of the area, began a volume at 23:23 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Dec 23, 5:40 PM CSTHail 1.75Hunt, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Dec 23, 3:35 PM CSTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 11.4 hours before the alert went out and 163 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 12:00Z on 2002-12-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 122 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 12:00Z on 2002-12-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
122 J/kg
Mixed-layer CIN
-129 J/kg
Mixed-layer LCL
662 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
203 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KEWX 232323
SVRSAT
TXC265-240015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
523 PM CST MON DEC 23 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  KERR

* UNTIL 615 PM CST

* AT 523 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 12 MILES SOUTHWEST OF KERR WILDLIFE MGMT
  AREA...OR ABOUT 20 MILES NORTH OF VANDERPOOL...MOVING EAST AT 50
  MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  OVER HUNT AT 535 PM
  OVER INGRAM AT 540 PM

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

THIS REPLACES THE TORNADO WARNING.

$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 23, 2:50 AM CSTSevere Thunderstorm WarningEWXBandera, Bexar, Kendall25 min
Dec 23, 3:49 AM CSTSevere Thunderstorm WarningEWXBlanco, Burnet, Llano41 min
Dec 23, 4:03 AM CSTSevere Thunderstorm WarningEWXHays, Travis42 min
Dec 23, 6:07 AM CSTTornado WarningEWXHays, Travis53 min
Dec 23, 7:00 AM CSTTornado WarningEWXTravis, Williamson30 min
Dec 23, 7:29 AM CSTTornado WarningEWXWilliamson31 min
Dec 23, 7:43 AM CSTTornado WarningEWXDeWitt47 min
Dec 23, 8:08 AM CSTSevere Thunderstorm WarningEWXFayette, Lavaca52 min
Dec 23, 8:58 AM CSTSevere Thunderstorm WarningEWXFayette47 min
Dec 23, 9:03 AM CSTSevere Thunderstorm WarningEWXLee27 min
Dec 23, 9:16 AM CSTTornado WarningEWXFayette29 min
Dec 23, 4:28 PM CSTSevere Thunderstorm WarningEWXEdwards62 min
Dec 23, 4:49 PM CSTSevere Thunderstorm WarningEWXReal56 min
Dec 23, 5:06 PM CSTTornado WarningEWXKerr24 min
Dec 23, 5:12 PM CSTTornado WarningEWXKerr18 min
Dec 23, 5:26 PM CSTSevere Thunderstorm WarningEWXMedina64 min
Dec 23, 5:43 PM CSTSevere Thunderstorm WarningEWXBexar62 min

Nearby

Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.